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Changes from advice from Sean M

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This commit is contained in:
Eric Caspole 2022-08-29 09:51:18 -04:00
parent a77e6a5d5f
commit 3a83b7321e
1 changed files with 23 additions and 16 deletions
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39
test/micro/org/openjdk/bench/java/security/ProtectionDomainBench.java
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@ -48,21 +48,19 @@ import org.openjdk.bench.util.InMemoryJavaCompiler;
@Warmup(iterations = 5, time = 2)
@Measurement(iterations = 5, time = 2)
@BenchmarkMode(Mode.Throughput)
@Fork(value = 3, jvmArgsAppend={"-Djava.security.manager=allow"})
public class ProtectionDomainBench {
@Param({"100"})
public int numberOfClasses;
URL u;
@Param({"10"})
public int numberOfCodeSources;
static byte[][] compiledClasses;
static Class[] loadedClasses;
static ProtectionDomain[] pd;
static String[] classNames;
static int index = 0;
CodeSource cs;
Permissions p;
static CodeSource[] cs;
static String B(int count) {
return "public class B" + count + " {"
@ -77,23 +75,22 @@ public class ProtectionDomainBench {
public void setupClasses() throws Exception {
compiledClasses = new byte[numberOfClasses][];
loadedClasses = new Class[numberOfClasses];
pd = new ProtectionDomain[numberOfClasses];
classNames = new String[numberOfClasses];
cs = new CodeSource[numberOfCodeSources];
u = new URL("file:/tmp/duke");
cs = new CodeSource(u, (java.security.cert.Certificate[]) null);
p = new Permissions();
p.add(new SocketPermission("localhost", "connect"));
for (int i = 0; i < numberOfCodeSources; i++) {
URL u = new URL("file:/tmp/duke" + i);
cs[i] = new CodeSource(u, (java.security.cert.Certificate[]) null);
}
for (int i = 0; i < numberOfClasses; i++) {
classNames[i] = "B" + i;
compiledClasses[i] = InMemoryJavaCompiler.compile(classNames[i], B(i));
pd[i] = new ProtectionDomain(cs, p);
}
}
static class ProtectionDomainBenchLoader extends ClassLoader {
static class ProtectionDomainBenchLoader extends SecureClassLoader {
ProtectionDomainBenchLoader() {
super();
@ -107,16 +104,14 @@ public class ProtectionDomainBench {
protected Class<?> findClass(String name) throws ClassNotFoundException {
if (name.equals(classNames[index] /* "B" + index */)) {
assert compiledClasses[index] != null;
return defineClass(name, compiledClasses[index] , 0, (compiledClasses[index]).length, pd[index] );
return defineClass(name, compiledClasses[index] , 0, (compiledClasses[index]).length, cs[index % cs.length] );
} else {
return super.findClass(name);
}
}
}
@Benchmark
public void bench() throws ClassNotFoundException {
void work() throws ClassNotFoundException {
ProtectionDomainBench.ProtectionDomainBenchLoader loader1 = new
ProtectionDomainBench.ProtectionDomainBenchLoader();
@ -125,4 +120,16 @@ public class ProtectionDomainBench {
loadedClasses[index] = c;
}
}
@Benchmark
@Fork(value = 3, jvmArgsPrepend={"-Djava.security.manager=allow"})
public void withSecurityManager() throws ClassNotFoundException {
work();
}
@Benchmark
@Fork(value = 3)
public void noSecurityManager() throws ClassNotFoundException {
work();
}
}